Carbureter.



PATENTED AUG. 7, 1906.

A. W.' L W. K. MENNS.

QARBURBTER.- APPLICATION FILED 0OT.26. 1904.

-42 SHEETS-SEEE'M.

wenivns:

' y g/bert Pif/Mews, 4 aller uns; 119

nieren sraijps ALBERT W. MENNS, OF MALDEN, lAND WALTER K. MENSpOF-EVERETT,

` MASSACHUSETTS.

CiAsBusE-res.

are. 828,228.

Specification of Letters Patent.

Patented Aug. 7, 190e.

application filed October 26,1904. Serial No. 230.061.

To a/ZZ' whom, it may concern: v

Be it known that we, ALBERT W. MENNs, a

i resident of Malden, and WALTER K. MENNs, a

resident of Everett, in the county of Middlesex and State of Massachusetts', citizens of the United States of America, have inyented has forits object the production of a device which may be attached in close proximity to the engine and in which the air admitted to the carbureting-chamber passes along between the casing thereof and an exterior cylinder, the temperature thereof being in@ creased by heat radiated from the engine'.

It provides for arl-automatic device forl regulating the inlet of air to suit the demands of the engine. n p

` It further provides for an effective mechanisin whereby the admission of air .to the carbureting chamber and the emission through the outlet of the gas generated may be effectively controlled by one lever.

It further provides for simple mechanism for controlling the level of the hydrocarbon in the hydrocarbon-inlet and maintaining it at a fixed point whatever may be the inclination of the device.

Moreover, it -provides for an effective mechanism whereby the inlet to the hydrocarbon-chamber of the hydrocarbon from the main supply may be controlled as effectively when the device is inclined as when horizontal.

It consists in certain other novel features of construction and arrangement of parts,

Awhich willbe readily understood by reference to the description of the drawings and to the y and at right angles thereto.

claims to be hereinafter given.

Of the drawings, Figure 1 represents a plan of the device embodying the features of this invention, the upper portionof the hydrocarbon-reservoir being cut insectionf` Fig. 2

represents a sectional elevation of the same,

the cutting plane being online 2 2 on Fig. 1.

Fig. 3 re resents a transverse sectional elevation of t e same, the cutting plane being ony ,line 3 3 on Fig.' 2.. Eig. 4 re resents a sec- `tional elevation of one end o the carburetng/ichamber looking toward the air-controlling nozzle and valve, the cutting plane being On line 4 4 on Fig. 2 andFig. represents a detail in plan of the mechanism for control.-

drocarbon-tank.

Similar characters designate 'like parts throughoutthe several figures ofthe drawin s.

du the drawings, 10 represents a portion of 4an engine which 1s provided with a lateral of a carbureting-chamber 13, the opposite end of said chamber being o en, as' at .14. Surrounding the casing 12 is a arger cylinder 15, the end of which nearest the engine is a flaring mouth 16' facing the engine` and adapted to catch the air and pass it alongv the end 14 thereof. 1.5 isclosed, as at 17, and is provided with a member 20. The cylindrical member 20 fits the inner bore of the chamber 12 and is'ada-ptmeans of the stem 19. The interior `of the through which extends a frusto-conical bore 22, the inner .perimeter of which .is adapted to fit the frusto-conical air-inlet nozzle 23, secured to the cylinder 15 by legs 24, extending through o enings in the casing 12, and'longitudinal slits 25 in the rear end ofthe cylindrical member 20.

The inner end of the frusto-conical air-inlet nozzle 23 is provided with atubular 'end 26, the front of which is in close proximity to the discharge-orifice of the hydrocarborninlet 27,

longitudinal slot 12* in the-member 20 into close proximity to the mouth of the-nozzle 26 Thejfront end of. the casing 12 is provided with a partition 28, through which 1s an opening 29, adapted to be closed by a valve 30, secured to the front end of the member 20: Just above and to the rear of the mouth of the nozzlel 26 the member 20 is rovided with va plurality of -cpenings 31, a apted to register with openfings 32 in the casing 12 immediately above the hydrocarbon-inlet 27.

`The amount of hydrocarbon passing carbon-inletf27 is vregulated by a needle-.valve 33, mounted in a boss 3.4 in the under side 35 member 20 is provided with a partition 21,'

which extends through the cylinderl, and a ling the valve for the supply-inlet to the'la'y- L nipple 11, to which is secured the casingV '12 'provided with a vertical branch 15*, having exterior of said chamber 13 throughl the open The rear end of the cylinder bearing 18 for the stem 19- of a cylindricalv y .i

ed to be moved longitudinally thereinI by the carbureting-chamber infront ofand in IOO IOS

through the discharge-orifice .of the hydroof the hydrocarbon-tank 36. The tank 36 is U-shaped in cross-section, and the sides 37 thereof extend upwardly on either side of the cylinder and are clamped thereto by means of the saddle 3S and clamping-piece 39, secured thereto by screws 40.- f

The hydrocarbon is admitted to the tank` 36rfrom ,any source of supply through the i pipe 41v and the supply-inlet/42, the passage i o'l ing regulated by the 'ballevalve 43. secured to 4lthe.dependingv niemeer 44," the upper end `of of the. hydrocarbon throughy the inlet 42 bewhich is provided with an eye,l through which lis i pass in opposite directions'the arms 47 and 148, pivoted, respectively, .at 1T/and 48.*1 to ears, 49., extending upwardlyfrom a ring 5 0.

. ,The ring 50 is pivoted at 51 to the` boss 52 of 54 at the rear of the hydrocarbon-tank 36 are articulated rods 55, which pass through eyes 56:on;the outer ends of the arms 47 48 and have articulated to the outer ends thereof rods 5'7, to which are secured floats 58, of cork or other suitable material. The upper end of one `of `the rods 57 bears against a member 59, by

Awhich the lloat mechanism may be operated Aby hand when desired. The floats 58 regulate the level of the hydrocarbon in the tank 36, so that the level is always maintained within an eighth of an inch of the dischargeorifice of the hydrocarbon-inlet 27 of the-carbureting-chamber'13. By providing the two lioats one on either side ofthe valve 43, controlling the admission of hydrocarbon-supply to the tank 36, this valvel is maintained in proper position no matter what may be the inclination of the device, andby the same mechanism the level of the hydrocarbon in the inlet will always be maintained at a cer- Y tain distance from the discharge-orice therevof at Whatever angle the device may be tipped. This prevents the flooding of the carbureting-chamber by a surplus amount of hydrocarbon rushinor through the hydrocarbon-inlet 27, as is Olten the case in carbureters of ordinary construction when the carriage or the device is tipped at various angles, which is very objectionable. n the admission of air to this carbureter it is essential that it should pass in close proximity .to the engine, which the flaring inlet-16 of the carbureter faces. In this manner the airl in passing to the carbureting-chamber is subjected to the heat radiating from the engine and its nipple and passes into the carburetingchamber in a su'l'liciently heated condition to be effective in its` operation. At the start the -valve 22 will be in a position at the rear of lthecasing 12, or at the left of Fig. 2 'so that the passage between the frusto-conical bore 22 and thel frusto-conical nozzle 23 will be Saaaas i closed, so thatall admission of air to the carbureting-charnber 13 will be through the-nozzle 26. The air will pass through the nozzle 26 across the discharge-orifice of the hydrocarbon-inlet 27 and will indraw the hydrocarbon into the carbureting-chamher 13. In the passage to the outlet 29 the particles of hydrocarbon will come in contact with the plate 30 and will be more thoroughly disintegrated by impact therewith, so that when the air and hydrocarbon has-passed the plate 30 and through the outlet 29 into .the nipple 11 of the engine the mixture Will have been thoroughly accomplished. After the carbureter has been started and. operated for a short time it is. desired to admit more air to the carbureting-chamber and this may be accomplished by a slight movementl of the rod. 19,

whichwill open up the ypassages betweenthe frusto-conical bore 22 and the nozzle 23, to permit the air to pass therethrough as well as through the nozzle 26. Itis obvious the size of this passage may he regulated by a greater or less movement of the member 20.. Oftentimes when in full operation and under certain Weather'conditions it is desirable to secure a greater supply of air than canbe'secured through the nozzle 26 or the passages around said nozzle, and this additional supply of air is produced by a movement of the same lever (not shown) operating to secure a further movement in the same direction of the stem 19 to cause the plurality of'openings 31 to register with the openings 32 in the casing 12,01: the carbureting-chamber, so that the air admitted through the mouth 16 may pass directly through these openings 32 31 to the carbureting-chamber. It will he seen by this construction that a further movement of said lever and the member -20 will cause the valve 30 to cooperate with the outlet-opening 29 to close this opening toa greater or less extent, as desired. Heretofore these .different operations have been produced usually by dil'l'erent devices operated by different levers; but in the present instance the variationsin the admissions of air to the carbureting-chainber and the closing of the outlet are all p rovided for by the operation of the same lever (not shown) operating upon the stem 1.9, the various operations being secured by a continuation of a longitudinal movement of said stem 19 in the same direction.

The vertical branch 15* at the -front of the cylinder 15 is provided with a frusto-conical opening 60, closedlby a diaphragm-valve 6 1, secured to a stem 62, passing through the EIO IIS

IZO

casing 12 and having adjustably secured to lilled with oil arid in which said diaphragm is adapted for vertical reciprocation, thereby increasing or decreasing the opening 6() by 5 v amount of fuel and necessarily more air, the

ceases means of the vertical movement ofthe valve 61, moving with said stem 62. "The 'no `mal position of said valve is as shown inthe d awings, and this position is maintained by per end of the stem 62.

tion of the valve 61 there is sufficient space riol means of the spring 65, interposed between 'the upper end of the vertical branch l5* and the adjustable nuts 66,- secured uponthe up- In' the normal posibetweenthe, outer perimeter thereof and the inner perimeter of the frusto-conical opening 60 to permit a sufficient quantity of air to pass into the carbureting-chamber l'to start the engine but as the speed of the engine increases, and, as a consequence, needs a greater increased speed of the engine will cause an iuf the valve 61 willcause the diaphragm 63 to rush of air through the 'bell-mouth 16 and, vforce the valve or diaphragm 61 downwardly to increase the area of the air-passagethroughthe air-inlet'vopening 60. `This movement of be moved downwardly, the oil beneath said diaphragm passing around vthe edges of the same to a position labove the opening, the area 'of the passage around the diaphragmin the dash-pot 64 being regulated so as to preventtoo quick a movement of the valve 6l.

As soon as'the'inrush of air through the bellmouth 1G has decreased, owing tothe slackening of the speed of the 'engine the spring 65 -will move the valve back into its normal position. 4This device readily provides for automatically regulating the amount of air supplied to the carbureting-chamber to meet the demande of the engine under` differ vent speeds and conditions.

This makes a very slmpleA construction of -a carbureter, which isvery effective 1n; its operation.

It is believed that with the foregoing de.

scription a thorough understanding of the operation of the invention will be under-- stood withoutl further description.

Having t'lhis described; our invention, We i claim z 1. ln a carbureter, the combination withl a carbureting-char'nber havin'g fa plurality: of

openings in the wall thereof and providedvr with a hydrocarbori-inlet;4 and 'an air-inlet nozzle having its mouth atV one sid-e of the mouthof said hydrocarbon-inlet and adap.tl 'ed' to eject a streamvof air from the'mouth of said nozzle across the mouth of said hydrocarbon-inlet, of a valvesurrounding said noz-i.

zle having "therein a` plurality of openings 5 ada ted'to register with the openings in the wal s of said chamberand regulate the ad`` mission of air thereto, andmeans for moving said valve.

2. In a carbureter, thecombination with a carbureting-chamber having a hydrocarboninlet thereto, of` an air-inlet nozzle adapted 'to eject therefrom an air-j et across the mouth of said inlet, and a valve surrounding said nozzle adapted in itsmovemeiitto open passage around said nozzlefor the admission of an additional supply ber.

3; ln a carbureter, the combination with a vcarbureting-chamber having a hydrocarboninlet, thereto, `of an air-inletnczgzle adaptedto eject therefrom an air-j et across the mouth of air to said chain-= of saidA inlet, and a valve :surrounding said nozzle adapted in itsmovement to admit an additional supply of air to said chamber through an annular opening around said nozzle, the area of which maybe variedby'the.

Siev

cured thereto, and meansfor moving said 5. ln a carburetor, the combination with a carbureting-chamber having a hydro carboninlet, of an' air-inlet nozzle in axial line with said chamber at the inlet end thereof adapted to eject therefrom an air-stream across the mouth of said hydrocarbon-inlet,- a valve surrounding said air-inlet nozzlev adapted in its movement to admitan additional supply. of air to said chamber, a partition' across said chamber provided with anoutlet-opening, and means secured to said valve for closing 'said o ening. 6. l n a'carburet`er, the combination with a carbureting-chamberhaving a hydrocarbon-- inlet, of an air-inlet nozzlein axial lin'e with saidc'hamberlat the inlet end thereof adapted to eject therefrom an air-stream across the TOO mouth of saidnhydrocarbon-inlet, and mechanism surrounding said air-inlet nozzle for decreasing or increasing' thesupply of air and controlling the outlet of gas by the continuation of the same movement.

7, ln a carbureter, the combination with a .carburetingchamber having a hydrocarbon@ irc inlet, of an air-inlet nozzle in axial line with said chamber at the inlet end thereof, a hy.- drocarbonechamber, an inlet thereto, a device for controlling the supply through said inlet, and floats foro'peraiing said device'.

8. in a carbureter, the combination with a carburetingchamber having! a hydrocar boninlet, of an air-inlet nozzle inaxilal line, with said chamber at the inlet end thereof, a hydrocarbon-chaniber', an inlet thereto, a valve insaid inlet, and two 'fioatsarticulatedxto saidyalvefor controlling the supply through' said inlet.

'9.51m a carbureter,` the ooinbinationvwith a carburetingchamber having a hydrecarbom drocarbon-chamber, 'aninlet thereto, a ring l' pivotedk to saidinlet, earsk extending upq "'ardly from'said-ring, arms pivoted4 tov said directions, oats 'secured tothe free ends of yIo .1'0 l carbureting-chamber having a hydrocarbonf regulatethe admission of an additional supply "of air around said nozzle, an outlet in axarticulated to said pivoted rods.

11. In a carbureter, the combinationvvith a lmeans secured to said valve for closing said/ `'therefrom an air-stream, across thel mouth of inlet, er en enf-imei n ezele in' examine wat said chamber at the inlet end thereof, a hy- .ears and'extending across the ring-in opposite carbureting-chamber having a hydrocarboninlet, of an air-inlet nozzle adapted to eject therefrom an air-stream across the mouth of said hydrocarbon-inlet, a valve surrounding said nozzle adapted in its-movement to admit an additional supply of air to said chamber, an outlet in axial line therewith, .and

outlet-opening.

12. In a ca \bureter, the c'ombinationxvith a inlet, of an air-inlet nozzle adapted to eject said hydrocarbon-inlet, an air-valve ada ted' for movement longitudinally vof said no zz eto i al line with said nozzle, and means secured to said valve adapted the movement of. said valve to close said outlet.

1,3., In a carbureter, the combination with a carbureting-chamber.having a hydrocarboninlet 'and an air-inlet, of a hydrocarbon-chamber partially surrounding said carburetingchamber, a supply-inlet to said hydrocarbonchamber, and Hoats universally connected With the valve in said supply-inlet to regulate thev admission of hydrocarbon at'any inclination...A l

14. In a carbureter, the combination of a carbureting-chamber, anair-inlet nozzle inaxial line With said carbureting-chamber, a hydrocarbon-inlet at right angles therewith, an air-inlet assage to said nozzle, an auto-v matic valve or controlling the amount of air. through said passage, an oil-chamber, `and a ,piston therein'for regulating the movement of said valve.

15. In a carbureter, the combination of aV carbureting-chamber, an air-inlet nozzle in axial line With said carbureting-chamber, a

hydrocarbon-inlet at right angles therewith,

an air-.inlet passage to said nozzle,an automatic valve Jor controlling :the amount of air through said passage, a stem therefor, a piston secured to the opposite end thereof, and an oil-chamber in Which s'aidpiston is adapter? to reciprocate.

Signed by us at Boston, Massachusetts,

this 25th dey of Oeteber, i904.

ALBERT W. MENNS. WALTER K. MENNS.

Witnesses: WALTER E. LOMBARD,

EDWIN T. LUCE. 

